Nematologica (1998) 44, 81-90

G.W. Yeates, S. Saggar, C.S. Denton and C.F. Mercer (1998)
Impact of clover cyst nematode (Heterodera trifolii) infection on soil microbial activity in the rhizosphere of white clover (Trifolium repens) - A pulse-labelling experiment
Nematologica 44 (1), 81-90
Abstract: White clover grown in pots of low or high fertility soil was inoculated with Heterodera trifolii, pulse-labelled with ¹⁴C and after 14 days the distribution of ¹⁴C was investigated. In the presence of many H. trifolii, soil fertility did not affect the root/shoot distribution of ¹⁴C. With few H. trifolii in high-fertility soil, there was significantly less ¹⁴C translocation to the roots. The ¹⁴C content per pot of the microbial biomass carbon was significantly greater in those pots with many H. trifolii at both soil fertility levels. Not only was there a significant increase in the size of the microbial biomass in pots with many nematodes but also the micro-organisms had a greater ¹⁴C concentration. This may indicate increased nutrient cycling in pots with plants infected by H. trifolii.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Gregor W. Yeates, Chris F. Mercer

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Heterodera trifolii	Clover (Trifolium)